Welcome To the Hoffman Amplifiers ForumMarch 13, 2026, 12:59:48 am | ||
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5 Replies
4555 Views |
by FYL |
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7 Replies
4497 Views |
by kagliostro |
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Parallel resister math
Started by Tone Junkie |
8 Replies
5265 Views |
by Tone Junkie |
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Elroy Jetson's Geetar Amp?
Started by DummyLoad |
2 Replies
4459 Views |
by DummyLoad |
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Pin 1 on EL34/kt77 Grounded?
Started by 67polara |
5 Replies
6217 Views |
by FYL |
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My old Heath 2-12 combo
Started by phsyconoodler |
2 Replies
3565 Views |
by Platefire |
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9 Replies
7483 Views |
by Willabe |
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Valve universal wiring
Started by FYL |
4 Replies
4221 Views |
by stingray_65 |
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screen/grid resistor
Started by jeff |
1 Replies
3469 Views |
by sluckey |
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6 Replies
5633 Views |
by FYL |
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8 Replies
6183 Views |
by DummyLoad |
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Circuit Board/Baffle Board Rattle?
Started by heymymy |
3 Replies
4462 Views |
by phsyconoodler |
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350ka pot w/ 70% tap
Started by punkykatt |
3 Replies
3908 Views |
by punkykatt |
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Sovtek Mig-50
Started by Leevi |
5 Replies
8633 Views |
by plexi50 |
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6G15 Input Question (FX loop operation)
Started by Dave |
10 Replies
6719 Views |
by Dave |
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Vacuum Tube base glue
Started by Tiny_Daddy |
8 Replies
9295 Views |
by supro66 |
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Are these the same?
Started by tubenit |
15 Replies
9180 Views |
by J Rindt |
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Champ idea/question 6v6/6l6
Started by Madison |
2 Replies
3930 Views |
by Madison |
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SS Power Transformers?
Started by plexi50 |
7 Replies
4605 Views |
by plexi50 |
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Flot-A-Tone Spy amp mysteries
Started by Packerswin14 |
8 Replies
6639 Views |
by PRR |
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Noise in Stout
Started by Walrus |
8 Replies
4996 Views |
by Walrus |
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Climax... Trainwreck...??
Started by crashtm1 |
2 Replies
4977 Views |
by crashtm1 |
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Filter cap replacement values
Started by pbman1953 |
5 Replies
5279 Views |
by pbman1953 |
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1 tube reverb and the TOS
Started by 67polara |
4 Replies
3932 Views |
by tubenit |
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Bias voltage
Started by jeff |
7 Replies
5739 Views |
by stingray_65 |
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Am I Crazy? About Bias Resistors
Started by heymymy |
17 Replies
7416 Views |
by sluckey |
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AC hum really bad
Started by 67polara |
4 Replies
3867 Views |
by plexi50 |
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6CA7 verse's EL34
Started by Jack1962 |
2 Replies
3916 Views |
by Willabe |
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5 Replies
4378 Views |
by dynaman1 |
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1 Replies
3320 Views |
by jjasilli |
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How not to build an amplifier
Started by kagliostro |
8 Replies
5212 Views |
by kagliostro |
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AB763 Deluxe scratch build
Started by Craw |
14 Replies
10544 Views |
by Craw |
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Transformer Re-Winding
Started by bigsbybender |
18 Replies
10084 Views |
by bigsbybender |
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0 Replies
4222 Views |
by plexi50 |
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2 Replies
3360 Views |
by simonallaway |
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High voltages in 66 Ampeg B15nf
Started by mosrite1 |
3 Replies
4553 Views |
by PRR |
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Small problem with my kinda TOS
Started by 67polara |
24 Replies
9048 Views |
by 67polara |
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Heater Layout
Started by 3choplex |
12 Replies
6919 Views |
by andrew_k |
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Anemic Fender RI Reverb
Started by chuggy |
3 Replies
3695 Views |
by sluckey |
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How to wire heaters with 12.6volt
Started by Tone Junkie |
9 Replies
12954 Views |
by RicharD |
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KT88's In a Plexi 50
Started by shortfuse |
1 Replies
3821 Views |
by shortfuse |
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Merlin's 2nd book - Power Supplies
Started by tubeswell |
22 Replies
9732 Views |
by archaos |
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Geezer's Little Wing Questions
Started by ncusack |
15 Replies
9829 Views |
by ncusack |
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6 Replies
7748 Views |
by kagliostro |
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5E3 head ..,
Started by crashtm1 |
3 Replies
3933 Views |
by Platefire |
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7 Replies
10769 Views |
by jjasilli |
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3 Replies
3798 Views |
by fiftynine |
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Parasitics - always.
Started by heymymy |
30 Replies
12531 Views |
by sluckey |
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Cheap turret board construction
Started by 3choplex |
19 Replies
14881 Views |
by kagliostro |
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0 Replies
4088 Views |
by kagliostro |
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